Home / 12,612.67-18,921.08-3,845.53

Finding the Fourth Proportional to 12,612.67, 18,921.08 and 3,845.53

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Solution

The fourth proportional to 12,612.67, 18,921.08 and 3,845.53 is: 5,768.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,612.67 : 18,921.08 = 3,845.53 : x
  2. Step 2: Convert to fraction form
    12,612.67/18,921.08 = 3,845.53/x
  3. Step 3: Cross multiply
    12,612.67x = 18,921.08 × 3,845.53
  4. Step 4: Simplify right side
    12,612.67x = 72,761,592.41
  5. Step 5: Solve for x
    x = 72,761,592.41/12,612.67
  6. Step 6: Final answer
    x = 5,768.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.